PHOTOMETRIC EVALUATION OF REFLECTION-REDUCING COATING FOR AIRCRAFT INSTRUMENT COVER GLASS.

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Abstract:

Comparisons were made between plain instrument cover glass used on aircraft instrument panels and cover glass deposited with multilayer antireflection coating conforming to MIL-C-14806 and AMS 2521. Photometric measurements of reflections, light transmission and contrast indicated the effectiveness of the reflection-reducing coating. Reflected glare from the face of instruments was significantly reduced by the reflection-reducing coating and increased light transmission enhanced contrast on instrument dial faces. Author

Author(s):
Stowell, Harry R. ; Bauer, Robert W.
Author Organization(s):
HUMAN ENGINEERING LABS ABERDEEN PROVING GROUND MD
Descriptive Note:
Technical memo.,
Pagination:
0034

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
HEL-TM-12-69
 Subject Terms
Communities of Interest:
Air Platforms
Descriptor(s):
(*FLIGHT INSTRUMENTS, INSTRUMENT DIALS), (*OPTICAL GLASS, OPTICAL COATINGS), (*OPTICAL COATINGS, OPTICAL PROPERTIES), HUMAN FACTORS ENGINEERING, REFLECTION, LIGHT TRANSMISSION, PHOTOMETERS, TEST METHODS, VISUAL PERCEPTION, PERFORMANCE(ENGINEERING), PERFORMANCE(HUMAN)
Field(s)/Group(s):
Flight Control and Instrumentation, Ceramics, Refractories and Glass, Coatings, Colorants and Finishes
Keyword(s):
*ANTIREFLECTION COATINGS, CONTRAST, EVALUATION, GLARE, LEGIBILITY
Report Date:
1969 Aug 01